Search: onr:"swepub:oai:DiVA.org:su-124120" >
Resonances with nat...
Resonances with natural and unnatural parities in positron-sodium scattering
-
- Umair, Muhammad (author)
- Stockholms universitet,Fysikum
-
- Jonsell, Svante (author)
- Stockholms universitet,Fysikum
-
(creator_code:org_t)
- 2015
- 2015
- English.
-
In: Physical Review A: covering atomic, molecular, and optical physics and quantum information. - 2469-9926 .- 2469-9934. ; 92:1
- Related links:
-
https://urn.kb.se/re...
-
show more...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- We present an investigation of resonances in positron-sodium scattering using the complex scaling method. For the target sodium atoms, the interaction between the core and outer electron is treated using two different types of analytical model potentials. Explicitly correlated Gaussian wave functions are used to represent the correlation effects between the outer electron, the positron, and the Na+ core. S-, P-, and D-wave resonances with natural parity have been calculated for energies extending up to the positronium n = 2 formation threshold. Resonance states for unnatural parities Pe and D0 have been calculated for energies extending up to the positronium n = 3 threshold. Below both positronium thresholds we have for each symmetry identified a dipole series of resonances, with binding energies scaling in good agreement with expectations from an analytical calculation. The presented results are compared with other theoretical calculations.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Theoretical Physics
- teoretisk fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database